At present, the development of the second-hand auto market is extremely rapid. According to statistics, from 2000 to 2017, the number of second-hand auto transactions rose from 251,700 to 12,409,900, an increase of 49 times. With the increase of the penetration rate and the average age of cars, the volume of used cars in China will continue to increase in the next five years at a rate that exceeds the trading volume of new cars, forming a two-trillion-yuan used car market pattern. With the further development of the domestic car market, the number of new vehicles has been increasing, and consumers are eager to change their cars. The urgent demand has become increasingly prominent. The prospects for the development of the used car market are very broad.